.\" ************************************************************************** .\" * _ _ ____ _ .\" * Project ___| | | | _ \| | .\" * / __| | | | |_) | | .\" * | (__| |_| | _ <| |___ .\" * \___|\___/|_| \_\_____| .\" * .\" * Copyright (C) Daniel Stenberg, , et al. .\" * .\" * This software is licensed as described in the file COPYING, which .\" * you should have received as part of this distribution. The terms .\" * are also available at https://curl.se/docs/copyright.html. .\" * .\" * You may opt to use, copy, modify, merge, publish, distribute and/or sell .\" * copies of the Software, and permit persons to whom the Software is .\" * furnished to do so, under the terms of the COPYING file. .\" * .\" * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY .\" * KIND, either express or implied. .\" * .\" * SPDX-License-Identifier: curl .\" * .\" ************************************************************************** .\" .TH CURLOPT_PROXY_KEYPASSWD 3 "16 Nov 2016" libcurl libcurl .SH NAME CURLOPT_PROXY_KEYPASSWD \- passphrase for the proxy private key .SH SYNOPSIS .nf #include CURLcode curl_easy_setopt(CURL *handle, CURLOPT_PROXY_KEYPASSWD, char *pwd); .fi .SH DESCRIPTION This option is for connecting to an HTTPS proxy, not an HTTPS server. Pass a pointer to a null-terminated string as parameter. It is used as the password required to use the \fICURLOPT_PROXY_SSLKEY(3)\fP private key. You never need a pass phrase to load a certificate but you need one to load your private key. The application does not have to keep the string around after setting this option. .SH DEFAULT NULL .SH PROTOCOLS Used with HTTPS proxy .SH EXAMPLE .nf int main(void) { CURL *curl = curl_easy_init(); if(curl) { CURLcode res; curl_easy_setopt(curl, CURLOPT_URL, "https://example.com/foo.bin"); curl_easy_setopt(curl, CURLOPT_PROXY, "https://proxy:443"); curl_easy_setopt(curl, CURLOPT_PROXY_KEYPASSWD, "superman"); res = curl_easy_perform(curl); curl_easy_cleanup(curl); } } .fi .SH AVAILABILITY Added in 7.52.0 .SH RETURN VALUE Returns CURLE_OK if TLS enabled, CURLE_UNKNOWN_OPTION if not, or CURLE_OUT_OF_MEMORY if there was insufficient heap space. .SH "SEE ALSO" .BR CURLOPT_KEYPASSWD (3), .BR CURLOPT_PROXY_SSLKEY (3), .BR CURLOPT_SSH_PRIVATE_KEYFILE (3), .BR CURLOPT_SSLKEY (3)